Another good one?

An old cowboy went to a bar and ordered a drink. As he sat there sipping his whiskey, a young lady sat down next to him. She turned to the cowboy and asked him, "Are you a real cowboy?" He replied, "Well, I've spent my whole life on the ranch, herding horses, mending fences, and branding cattle so I guess I am."

She said, "I'm a lesbian. I spend my whole day thinking about women. As soon as I get up in the morning, I think about women. When I shower, watch TV, everything seems to make me think of women."

A little while later, a couple sat down next to the old cowboy and asked him, "Are you a real cowboy?"

He replied, "I always thought I was, but I just found out I'm a lesbian."